Home / 49,801.65-74,702.16-20,219.19

Finding the Fourth Proportional to 49,801.65, 74,702.16 and 20,219.19

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Solution

The fourth proportional to 49,801.65, 74,702.16 and 20,219.19 is: 30,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,801.65 : 74,702.16 = 20,219.19 : x
  2. Step 2: Convert to fraction form
    49,801.65/74,702.16 = 20,219.19/x
  3. Step 3: Cross multiply
    49,801.65x = 74,702.16 × 20,219.19
  4. Step 4: Simplify right side
    49,801.65x = 1,510,417,166.45
  5. Step 5: Solve for x
    x = 1,510,417,166.45/49,801.65
  6. Step 6: Final answer
    x = 30,328.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.